the vodka dosing may or may not be needed, same for the peroxide. we only dose it to fix problems/both of those actually
so do you have a problem with nitrates or algae? post pics
For all peroxide questions and pictures you can reference a thread with running dosers who are using this one method out of a thousand to treat algae.
The vodka is used as a carbon source so that additional bacteria will floc and reproduce in the water column that uptake additional nitrogen and phosphorous out of the system, and that extra biomass must be removed.
Both of these methods of treatment/control are among a sea of veritable options in correcting tank problems so they may or may not be the right choice.
The peroxide thread with both in tank dosings and external dosings is called pico reef pest algae challenge thread in the nanos forum. The vodka dosing info you can get from the chemistry forum here.
All forms of aquarium treatment have staunch advocates and detractors each offering up various proofs to their stance, good luck in sorting that out
it all starts with a full tank shot of your issues and a list of your water params.
